Trademark policy/Section 6
Section 6 Trademark Misuse
6.1 Reporting misuse Fighting trademark misuse is very important. We put a lot of effort into going after cases of trademark infringement because we want to protect the valuable trademark rights the community has created. If you see a mark being used in any way that could be infringing, please tell us! Just send an email to legal-tm-vio@wikimedia.org or report it here. We really appreciate your help!
6.2 Revoking permission for misuses We may revoke the right to use the Wikimedia marks under this policy at any time by providing notice in any manner if we determine that a trademark use is inconsistent with our mission or could harm community members, movement organizations, or the Wikimedia Foundation.